Isleta, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 4.6 °C (low) to 22.7 °C (high). Annual precipitation averages 217.7 Millimeters. Isleta is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.1 °C | 10.7 °C | 10.67 mm |
| February | -3.9 °C | 14 °C | 10.41 mm |
| March | -0.3 °C | 18.6 °C | 14.48 mm |
| April | 3.6 °C | 22.7 °C | 12.95 mm |
| May | 8.3 °C | 27.4 °C | 11.18 mm |
| June | 13.4 °C | 33.3 °C | 12.7 mm |
| July | 16.7 °C | 34.2 °C | 34.04 mm |
| August | 16.2 °C | 32.9 °C | 31.24 mm |
| September | 11.3 °C | 29.4 °C | 28.96 mm |
| October | 4.4 °C | 23.1 °C | 22.61 mm |
| November | -2.1 °C | 16.1 °C | 13.97 mm |
| December | -5.9 °C | 10.2 °C | 14.48 mm |
| Annual | 4.6 °C | 22.7 °C | 217.69 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |